Erysiphe polygoni DC.

KW [Darwin] 13541. 采集地点: 乌克兰; Poltava Oblast; Kobeliaky District; island Vishnyaki on Dnīprī between villages Svītlohīrs’ke and Orlik; southern part of of island (N48°50' E34°07'). 采集日期: 1994年8月10日. 相关生物: Rumex acetosa (叶片). 采集者: Heluta, V.P.. 鉴定人: Heluta, V.P..